<template>
    <div>
        <div class="my_grild">
            <swiper>
                <swiper-slide v-for="(page,index) in pages" :key="index">
                    <div class="icon" v-for="item in page" :key="item.id">
                        <div class="icon-img">
                            <img class="icon-img-content" :src="item.imgUrl">
                        </div>
                        <p class="icon-desc">{{item.desc}}</p>
                    </div>
                </swiper-slide>
            </swiper>
        </div>
    </div>
</template>
<script>
export default {
  props: {
    iconList: Array
  },
  data() {
    return {};
  },
  computed: {
    pages() {
      const pages = [];
      this.iconList.forEach((item, index) => {
        //page当前下标的数据应该展示在轮播图的第几页   index是3 下标是2  Math.floor(2/8)向下取整为0  Math.floor(8/8)向下取整为1
        const page = Math.floor(index / 8);
        if (!pages[page]) {
          pages[page] = [];
        }
        pages[page].push(item);
      });
      return pages;
    }
  }
};
</script>
<style lang="stylus" scoped>
.my_grild 
  overflow: hidden;
  width: 100%;
  height: 0;
  padding-bottom: 50%;
  background: #fff;
  .icon {
    float: left;
    width: 25%;
    padding-bottom: 25%;
    // background : red;
    position: relative;
    .icon-img {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0.44rem;
      box-sizing: border-box;
      padding: 0.05rem;
      .icon-img-content {
        display: block;
        margin: 0 auto;
        height: 100%;
      }
    }
    .icon-desc {
      position: absolute;
      left: 0;
      right: 0;
      bottom: 0;
      height: 0.44rem;
      line-height: 0.44rem;
      text-align: center;
      color: #333;
      font-size: 0.32rem;
    }
  }

</style>
